Furniture spring hook



FIG. 1 is a top perspective view of a furniture spring hook showing my new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is an end elevational view thereof; the opposite end being a mirror image thereof;

FIG. 4 is a side elevational view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof. 

The ornamental design for a furniture spring hook, as shown and described. 